Synthesis and Antimicrobial Activity of Pyridines Bearing Thiazoline and Moieties.
作者:Hoda Y. HASSAN、Nawal A. El-KOUSSI、Zeinab S. FARGHALY
DOI:10.1248/cpb.46.863
日期:——
series of new pyridines bearing thiazoline (3a--n) and thiazolidinone (5a--e) moieties were prepared via the cyclization of the corresponding substituted pyridyl thiourea (2a--g) with an appropriately substituted phenacyl bromide or chloroacetic acid, respectively. The antimicrobial activity was determined for representative compounds and most of them showed moderate activity against Gram-positive bacteria
2-Aminothiazoles as Therapeutic Leads for Prion Diseases
作者:Alejandra Gallardo-Godoy、Joel Gever、Kimberly L. Fife、B. Michael Silber、Stanley B. Prusiner、Adam R. Renslo
DOI:10.1021/jm101250y
日期:2011.2.24
2-Aminothiazoles are a new class of small molecules with antiprion activity in prion-infected neuroblastoma cell lines ( J. Virol. 2010, 84, 3408). We report here structure−activity studies undertaken to improve the potency and physiochemical properties of 2-aminothiazoles, with a particular emphasis on achieving and sustaining high drug concentrations in the brain. The results of this effort include
Molecular conformation ofN,N′-diarylthioureas: An assessment by1H NMR and infrared spectroscopy
作者:L. V. Sudha、S. Manogaran、D. N. Sathyanarayana
DOI:10.1002/mrc.1260230802
日期:1985.8
Several N,N′‐dipyridyl‐ and N‐phenyl‐N′‐pyridyl‐thioureas were examined in different solvents at various temperatures by 1H NMR in order to study their conformational properties. The influence of concentration and the methyl substituent in the pyridine ring on the chemical shifts of the NH and pyridine groups was investigated. The observed chemical shifts are analysed in terms of the conformational properties
通过 1H NMR 在不同溶剂中在不同温度下检测了几种 N,N'-二吡啶基和 N-苯基-N'-吡啶基硫脲,以研究它们的构象特性。研究了浓度和吡啶环中的甲基取代基对NH和吡啶基团化学位移的影响。根据分子的构象特性分析观察到的化学位移。已经确定了关于 CN 键的内部旋转的自由能障碍。已测量红外光谱以补充核磁共振研究。分子内氢键在吡啶硫脲的优选构象中起主要作用。数据进一步揭示了对称 N 中发生的有趣的动态交换现象,
Design, synthesis, DNA assessment and molecular docking study of novel 2-(pyridin-2-ylimino)thiazolidin-4-one derivatives as potent antifungal agents
作者:Nadia Hanafy Metwally、Ibrahim Taha Radwan、Walaa Salah El-Serwy、Mohamed Ahmed Mohamed
DOI:10.1016/j.bioorg.2018.11.050
日期:2019.3
A series of novel 2-imino-4-thiazolidinone derivatives 4a,b was synthesized through reaction of unsymmetrical thioureas 3a,b with chloroacetic acid. Condensation of 4a,b with aromatic aldehydes 5a-eyielded the corresponding 5-arylidene derivatives 6a-j. In addition, the reaction of 4a,b with 4-arylazo-3-hydroxybenzaldehydes 8a-c furnished the respective mono-arylazo-4-thiazolidinones10a-f. All the
2-aminopyridine/pyrazine/pyrimidine with substituted isothiocyanates followed by base catalyzed ringclosure with 1,2-dibromoethane to obtain thiazolidine-2-imines with broad substrate scope and high functional group tolerance. The synthetic strategy merges well with the thiourea formation followed by base catalyzed ringclosure reaction for the thiazolidine-2-imine synthesis in a more modular and straightforward